A sealing system includes a housing with an interior chamber, where the interior chamber includes a mouth. The sealing system also includes a seal positioned adjacent to the mouth of the interior chamber and a plunger configured to move through the seal and into the interior chamber along a longitudinal axis of the sealing system. The plunger is configured to deform the seal from a first position to a second position, where in the first position, the seal has a first shape, and in the second position, the seal has a second shape, different from the first shape.

The subject application relates to a cupseal for a compressor and method for preparing the same. Systems and methods are disclosed that include providing an annular seal for a compressor. The annular seal includes a substantially planar first portion, a first angled portion extending at an angle from the substantially planar first portion, and a second angled portion extending radially at an angle from the first angled portion. The annular seal is formed from a fluorinated polymer and includes at least one additive or filler. The annular seal exhibits reduced wear and an increased lifespan.

Seal assemblies, gaskets, bearing assemblies, and their components can be used as pre-packaged seal systems and pre-packaged seal and bearing systems. The seal assemblies can be orientated in different configurations for different applications. Gaskets to restrict flow and gaskets with memory lips to operate as sealing lips can be included to increase the number of sealing points. In a pre-packaged configuration, the cylinder can be a straight cylinder, a stepped cylinder, or a split cylinder. Bearing assemblies can be pre-packaged with the sealing assemblies and service grease may optionally be used to provide lubrication and limit fluid incursion into the spring cavities.

A multi-layered lip seal comprising a dynamic layer optionally having a filler incorporated therein and a static layer optionally having a filler incorporated therein is described. The lip seal has an annular ring shape, wherein an inner diameter of the ring shape is curved in an axial direction so as to give the lip seal a J-shape when viewed from a cross-sectional perspective. Fillers that can be included in static layer include stiffening filler, reinforcement fillers, conductive fillers and/or abrasion resistance fillers. Fillers that can be included in the dynamic layer include wear resistance fillers. The use of specific fillers in specific layers of the multi-layered lip seal allows for certain segments of the lip seal to be imparted with the benefits of the filler without negatively impacting other segments of the lip seal.

A multi-layered lip seal comprising a dynamic layer optionally having a filler incorporated therein and a static layer optionally having a filler incorporated therein is described. The lip seal has an annular ring shape, wherein an inner diameter of the ring shape is curved in an axial direction so as to give the lip seal a J-shape when viewed from a cross-sectional perspective. Fillers that can be included in static layer include stiffening filler, reinforcement fillers, conductive fillers and/or abrasion resistance fillers. Fillers that can be included in the dynamic layer include wear resistance fillers. The use of specific fillers in specific layers of the multi-layered lip seal allows for certain segments of the lip seal to be imparted with the benefits of the filler without negatively impacting other segments of the lip seal.

A seal assembly for a rotatable shaft assembly includes a seal housing and each of a main seal and a dust seal extending circumferentially around a seal housing center axis. The dust seal includes a radially inward dust seal lip, and is formed by a sealing layer having a plurality of ventilation openings formed therein, and a debris-blocking filter layer attached to the sealing layer and positioned across the ventilation openings. The main seal and dust seal assist in maintaining lubricating oil within a seal cavity. The dust seal prevents entry of debris whilst ventilating the seal cavity to limit carbonization of oil on seal assembly components. In an implementation the seal assembly is part of a rotatable crankshaft assembly.

A seal assembly for a rotatable shaft assembly includes a seal housing and each of a main seal and a dust seal extending circumferentially around a seal housing center axis. The dust seal includes a radially inward dust seal lip, and is formed by a sealing layer having a plurality of ventilation openings formed therein, and a debris-blocking filter layer attached to the sealing layer and positioned across the ventilation openings. The main seal and dust seal assist in maintaining lubricating oil within a seal cavity. The dust seal prevents entry of debris whilst ventilating the seal cavity to limit carbonization of oil on seal assembly components. In an implementation the seal assembly is part of a rotatable crankshaft assembly.

Systems and methods include providing an annular seal stack for an assembly. The seal stack is disposed within an annulus formed between a probe and a housing of the assembly and configured to provide a radial seal between the probe and the housing. The seal stack includes a first support retainer, a first lipseal, a first seal support system comprising at least one support ring disposed between the first support retainer and the first lipseal, a second support retainer configured to support the first lipseal, a second lipseal, a second seal support system comprising at least one support ring disposed between the second support retainer and the second lipseal, and a third support retainer configured to support the second lipseal.

Systems and methods include providing an annular seal stack for an assembly. The seal stack is disposed within an annulus formed between a probe and a housing of the assembly and configured to provide a radial seal between the probe and the housing. The seal stack includes a first support retainer, a first lipseal, a first seal support system comprising at least one support ring disposed between the first support retainer and the first lipseal, a second support retainer configured to support the first lipseal, a second lipseal, a second seal support system comprising at least one support ring disposed between the second support retainer and the second lipseal, and a third support retainer configured to support the second lipseal.

A seal ring includes: a static seal seat arranged inside the seal ring in a radial direction; and two sealing lips arranged outside the seal seat in the radial direction, the two sealing lips being axial sealing lips, one sealing lip of the axial sealing lips being a radially inner first and an other sealing lip of the axial sealing lips being a radially outer second axial sealing lip, the second axial sealing lip enclosing the first axial sealing lip at a radial distance on an outer circumference. The first axial sealing lip has greater flexibility in the radial direction than the second axial sealing lip. The second axial sealing lip has a surface structure radially externally on a side facing radially away from the first axial sealing lip, which surface structure is aerodynamically active during an intended use of the seal ring, so as to swirl an air layer.